200 LORD WALSINGHAM. 



by the late Mr. Boll, which has enabled me to amend the description. 

 Fore wings straight, narrow and sharply pointed, straw-colored ; an ob- 

 lique brownish streak or fascia about the basal third of the wing, nearer 

 to the base on the dorsal than on the costal margin, sending a point of 

 scales of the same color outwards along the middle of the cell, with 

 silvery metallic scales before it towards the base, above it towards the 

 costa, and beyond it along the dorsal margin, some of which have a lilac 

 iridescent lustre ; a brownish streak from the commencement of the cos- 

 tal cilia, tending obliquely outwards to the dorsal margin, internally mar- 

 gined with bright silvery scales, above and below which are brownish- 

 fuscous streaks through the cilia ; the extreme apex is silvery. The 

 hind wings, which are narrower than the fore wings, are pale straw- 

 colored, straight and sharply pointed, showing three distinct silvery 

 fasciae, the outer one being the narrowest of the three ; these are mar- 

 gined on both sides by brownish submetallic scales ; beyond the outer 

 fascia is a bronzy brown shade, the cilia above and beneath it, and at the 

 extreme apex, being darkened in contrast to the remainder, which are 

 very pate straw-white ; legs very pale straw-color ; abdomen straw-col- 

 ored, barred with silvery. On the dorsal margin of the fore wings are 

 two groups of dark projecting scales, one before and one beyond the 

 middle, and there is a similar group before the middle of the hind wings. 

 Expanse 10 millim. 



One specimen in the collection of the Am. Ent. Soc. Philadelphia. 



Genus II KlllSli 

 107fi. Elacliista? iiietallif'era, sp. nov- Head, palpi, thorax, and base 

 of the fore wings silvery grey. Antennre somewhat darker, marked on their 

 outer half above by six dilute silvery grey spots, including the extreme apex as 

 one of the six. Head smooth : palpi depressed, the apical joint slightly upturned. 

 Fore wings shining dark brown, with a slightly oblique golden fascia before the 

 middle, wider and nearer to the base on the costal than on the dorsal margin ; on 

 its outer margin below the fold a tuft of raised brown scales; beyond the middle 

 is a second golden fascia, wider and nearer to the base on the dorsal than on the 

 costal margin; on its outer edge a tuft of raised brown scales; a silvery shining 

 costal spot before the apex, and a larger opposite dorsal one with a beautiful blue 

 and purple iridesence; the points of the brown apical cilia are whitish. Dorsal 

 cilia and hind wings with their cilia brownish grey. The legs brown, with con- 

 spicuous shining white bands and tarsal spots. Apparently allied to E. madare.Ua, 

 Clem., but with a different arrangement of markings. Expanse 5 millim. 



One specimen in Mr. Goodell's collection. 



I place this provisionally in the genus Elachista, from which it differs 

 only in the possession of raised tufts of scales, so far as can be ascer- 

 tained without denuding the wings. Elachista bicristutella, Cham. Cin. 

 Soc. Nat. Hist. vol. ii. p. 187, has the same peculiarity. 



